74138 decoder
Abstract: 74138 74138 3 to 8 decoder 40af interfacing 8051 4066 74138 logic circuit 75F003 AN3010 MT 7930 AS253X
Contextual Info: sames SAN3010 APPLICATION NOTE SINGLE CHIP TELEPHONE INTERFACE FOR KEYBOARD ENTRY VIA uC 1 Scope This application note describes a simple interface for keyboard entry to the SA253x family via a Microcontroller. It also includes hardware description , flowchart and a software example based on the 80Cxx - family of
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san3010sa253x80cxxsa2531/2+1074138 decoder7413874138 3 to 8 decoder40afinterfacing 8051 406674138 logic circuit75f003an3010mt 7930as253x
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on line ups circuit schematic diagram
Abstract: AN3020 SA2531 SA2532 SAN3020
Contextual Info: sames SAN3020 APPLICATION NOTE SINGLE CHIP TELEPHONE POWER EXTRACTION FOR EXTERNAL LOADS 1 Scope This application note describes a simple add-on circuit for extracting current to supply external loads. It also includes hardware description ,schematic and Vout/Iout curves.
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san3020on line ups circuit schematic diagraman3020sa2531+1sa2532
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telephone handset circuit schematic diagram
Abstract: AD3371 sidetone cancellation Transistor BC327 Q1 5V-60mV BC337-10 SAN2202B loudspeaker BC337 circuit example SPEAKERPHONE
Contextual Info: sames SAN2202 APPLICATION NOTE SINGLE CHIP “SPEAKERPHONE” WITH 8 - OHM LOUDSPEAKER AMPLIFIER 1 Scope This application note describes a low-cost add-on circuit for driving an 8Ω-Loudspeaker to get a simple loudhearing “Speakerphone” Telephone. To possible ways of supplying the amplifier are shown:
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san2202san2202asan2202bsan3020+10sa253xtelephone handset circuit schematic diagramad3371sidetone cancellationtransistor bc327 q15v-60mvbc337-10loudspeakerbc337 circuit examplespeakerphone
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